Electric lamp holder or socket



H. E. SLADE ET AL ELECTRIC LAMP HOLDER on SOCKET ,May 19, 1931.

Filed March 10, 1927 Patented May 19, 1931 STATES Pal-Tsar oFFIcE HAROLDE. SLADE, F GLEN RIDGE, AND JOHN GEHRING, 0F JERSEY CITY, NEW JERSEY,ASSIGNOBS T0 BEAVER MACHINE & TQOL CO., INC, OE NEWARK, NEW

JERSEY ELECTRIC LAM]? HOLDER OR SOCKET Application filed March 10, 1927.

Our invention relates to lamp holders and in particular to the typecommonly known as candle sockets.

The object of the invention is to provide an adjustable socket which hasthe advantages and features characteristic of the nonadjustable type.

A further object is to provide a socket m that is simple, sturdy,economical to manufacture and easy to install.

A further object is to provide an adjustable socket in which the basemember is so constructed as to eliminate one of the supporting membersnow in common use.

Other objects will be apparent as the specification progresses.

The specification specifically shows the preferred form in which ourinvention is embodied, but as other forms will be apparent to thoseskilled in the art to which this invention relates and without departingfrom the spirit and scope of this invention, we do not limit ourselvesto the exact structures shown.

There are in use two distinct types of candle sockets; the non-extensiontype and the extension or adjustable type. Each has its particularadvantages in its sphere of usefulness and application.

The non-extension type has a very simple supporting element, usuallyconsisting of a U shaped yoke. The open or top end of this yoke fastensdirectly to the porcelain base, while the closed end is provided with athreaded nipple for attaching the socket to the fixture with which it isto be associated. These yokes are supplied in varying fixed lengths, andsockets provided with them are 40 used in large volume in what may betermed standard fixtures. That is, fixtures in which the lengths of thecandles have been standardized.

The extension or adjustable type sockets are more elaborate inconstruction. Generally the supporting element is made in two parts. Thelower part is constructed so as to fasten to the fixture, and the upperpart is arranged for fastening to the base of the socket proper.Provision is made whereby the two parts may be held together in anySerial No. 174,177.

fixed position and in any desired overall length. Such sockets are usedin special fixtures employing different length candles which aredesigned to obtain specific artistic effects.

The extension type sockets are considerably more expensive than thenon-extension type. As the fundamental application and use is the samefor both types, it is the purpose of our invention to provide a singletype socket that will take the place of the two now in use.

To this end we employ elements as shown by the drawings, in which:

Figure 1 is a sectional elevation thru the center line of the socket.

Figure 2 is a sectional elevation taken on line 22, Figure 1.

Figure 3 is a plan view of Figure 1.

Figure 4 is a sectional plan view taken on line 4%, Figure 2.

The base 1 is made of porcelain or other suitable insulating materialand is provided with a recess 2 at the upper end for holding in exactrelationship the body section 3 of the wire terminal 4:.

The screw shell of lamp holder 5 is supported by the base 1, and thebottom 6 of the shell is in direct contact with the body 3 of theterminal 4. A second terminal 7, having a body section 8, and flexiblesection 9, is separated and insulated from the shell 5 and terminal 4 bythe insulating washer 10. In order that the shell 5 will not rotate whena lamp base (.not shown) is inserted, lugs 11 are projected from thebody of the base 1, and pass thru suitable apertures in the shell 5 andinsulator 10.

To bind the terminal 4, shell 5, terminal 7 and insulator into a fixedunitary structure a rivet or eyelet 12 is employed; being passed thru acentral hole 13 in the base and other elements and then spun over as at1 1- or otherwise secured.

The base 1 has a slot 15, beginning at the lower end of the base andterminating substantially near the upper end.

Two grooves 16 are provided and which are parallel with the slot 15.

Between the grooves 16 is a clamping surface 17 set in'from the outerperiphery of the base'and at right angles to the grooves. At theopposite ends of the slot is another clamping surface 18; The supportingelement is substantially a channel member 19 terminating in a nipp'le20. Flanges 21'of the supporting element slide within the basegrooves16, effectively aligning the base member in addition to l strengtheningthe support. Nearithe vupper end of the'channel member 19 a threadedhole '22, is provided, into which a screw 23 is inserted. By enteringthebody offthe screw 23 in the slot 15, and. theflanges 21 1 in the grooves16 it is possible to clamp the r. I

' support-element in any fixed relationship with the base throughoutthe-entire range of the slot 15. -The, clamping is -accomplished by thehead 24 of the screw 23 rest- 'ing against the, clamping surface 18,'andthe channel member 19 resting against the clamp- 1 ing surface 17 andthe threaded portion of "the screw beingdriven tightly into the-hol 22of the supporting element.

525 The nipple is threaded at 25 to provide means for securing thesocket to the fixturea v 1 I Tlieynovel feature of our invention isthecombination of the slotted base together with'ga slidin'g supportingelement and having described our invention, we claim:

' V 1-; An electric socket or lamp holder con-' sisting of a base and asupporting member; said base being provided with'a transverse :slotrunning substantially the length of the base, said, supporting membercomprising a nipple section and a channel section; to-, getherwith'means' passing thru said slot in said base and into saidchannelsection of "i410 said support to rigidly unite, in any variablerelationship, said'base andsaid support;

together witha lamp holder or shell and terminals for attaching feedwires to said socket? V c 2..An-electric socket comprising a lampholding-shell, a plurality of wire terminals,

base, and a supporting member; said base beingiprovided witha'transverse' slot sub stantiallyithelength ofrthe base and channelssituated either side of said'slot; said supportmember being providedwith flanges which slide in said-channels; together with 7 meansJpassingthru said slot to maintain in fixed relationship said, support"to said base.

' 1 5-5 Signed at Newark, New Jersey this 4cth day. of March, 1927. 7 iV i HARQLD. E. SLADE. V V

JOHN G'EHRI'NG,

